Commons:History merging and splitting

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Visualization of the merging process.

Shortcuts: COM:HMS • COM:HISTMERGE This page provides information on issues and solutions relating pages and files that underwent cut-and-paste moves (which its history has to be put back together), and inappropriate merging/overwriting (of which its history needs to be split).

History merging

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Shortcut

Because most users have the ability to use the move page function, cut-and-paste moves are usually done by people who are not aware of that function, or when the move function fails (e.g. because the target has history), and people who aren't aware of the Administrators Noticeboard forum to ask for help from an administrator.

When a cut-and-paste move is done, the page history of a page can be split among two or more different pages. This is very undesirable, because we need to keep the history with the content for copyright reasons. In most circumstances, administrators are able to fix this by merging page histories.

Instructions for admins
  1. Temporarily delete NewPage
  2. Move OldPage to NewPage, using the move functionality. (In case it is a file, you have to open the Move & Replace link in a new tab or disable AjaxQuickDelete in your preferences.) (Now the old history versions are the whole of the new title’s.)
  3. Undelete the NewPage page, by:
    1. Viewing the page/file history
    2. Clicking “View or restore … deleted edits?”, and
    3. Clicking on “Restore!”. (Now the new title’s history has both the old and new versions, including an extra copy of the most recent version of OldPage, created by the move tool.)
  4. At this stage, NewPage will only show the text “#REDIRECT NewPage” (assuming a redirect was the most recent version of OldPage, the NewPage page will now be showing whatever the most recent version of OldPage was). The last step is to revert (or RevisionDelete) to the last version of NewPage from before the move.

Special:MergeHistory makes it possible to automatically merge the history of two pages.


History splitting

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Shortcut

Over time, pages or files may change from one underlying topic to a completely separate topic. Normally, this should be accomplished through moves of pages, or by reuploading an altered file on a slightly different title. However, if a user is unfamiliar with those processes they may simply change the subject of a page or file (overwriting the old). If this is not caught immediately it is very easy for the new topic to build up a substantial edit history of its own.

Instructions for admins
  1. Temporarily delete the page/file (original title)
  2. Restore previous revisions up to (but not including) the point where the topic was changed.
  3. Move (without redirect) the restored versions (old topic) to the desired new title. (In case it is a file, you have to open the Move & Replace link in a new tab or disable AjaxQuickDelete in your preferences.)
    • If there’s already a file or page under the new title and you wish to histmerge into it:
    a) select the “delete the existing article” option, while moving;
    b) restore deleted revisions of new title.
  4. Restore new revisions of new topic (still at original title).

A history merge could also be undone in this way.

Requesting a merge or split

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To request a merge or split, fill the following template, and submit it at the bottom of this page. Remember, both files need to be of the same type. Merging of more than two files may also be possible in some cases. 


== [[:FILE/PAGE 1]] → [[:FILE/PAGE 2]] ==
* Request: [Split or Merge]
* Reason:
--~~~~
  • For merges, replace FILE/PAGE 2 with the page you want FILE/PAGE 1 contents to be merged into.
  • For splits, replace FILE/PAGE 2 with the new filename which you want the newer content to be moved from FILE/PAGE 1.
 

Add a new request

Shortcut

Current requests

View Edit Add topic

 See also categories: Media requiring a split up and Requested merges.

File:Railings in front of old Government Center MBTA Station (53684027135).png → File:2009 Government Center Boston 3845709940.jpg

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  • Request: Merge
  • Reason: Much higher quality in the first image and less contrast

--Ethanmlong (talk) 03:04, 31 July 2024 (UTC)[reply]

 Not done Two different file formats. Use {{Duplicate}} template instead. --Sreejith K (talk) 16:56, 31 July 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 16:56, 31 July 2024 (UTC)

File:They Might Be Giants play Arts & Ideas Festival, New Haven, 2009 (53812639802).jpg → FILE:They Might Be Giants New Haven 2009.JPG

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  • Request: Merge
  • Reason: Must better color corrected and copy of the original photo, and if possible use the metadata from the latest upload.

--Ethanmlong (talk) 04:38, 31 July 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 16:54, 31 July 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 16:54, 31 July 2024 (UTC)

File:Nu shu.svg → File:Nu shu 1.svg

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  • Request: Split
  • Reason: The text direction was changed, overwriting the original file.

--Thyj (talk) 06:24, 31 July 2024 (UTC)[reply]

✓ Done - Overwritten file has been moved to File:Nu shu (2).svg. --Sreejith K (talk) 16:53, 31 July 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 16:53, 31 July 2024 (UTC)

File:Dorayaki 001.jpg → File:Dorayaki 005.jpg, File:Dorayaki 006.jpg

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  • Request: Split
  • Reason: The uploader overwrote a file with different content. Please move the previous version to the new file.

--Thyj (talk) 06:42, 31 July 2024 (UTC)[reply]

✓ Done - Moved overwritten files to File:Dorayaki 001 (2).jpg and File:Dorayaki 001 (3).jpg --Sreejith K (talk) 16:59, 31 July 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 16:59, 31 July 2024 (UTC)

Suppression de plusieurs photos

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Suppression de plusieurs photos sur demande de propriétaires. Il s'agit des photos de la chapelle de Mollans (Haute-Saône) ainsi que les photos diu château de Mollans (Haute-Saône) 2A01:CB10:8C09:E800:8DEA:14C3:9BC8:79E4 14:06, 1 August 2024 (UTC)[reply]

I don't think I understood. Please elaborate. --Sreejith K (talk) 17:31, 1 August 2024 (UTC)[reply]

File:Windows Settings app icon.png → File:Windows Settings app icon (2).png

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  • Request: Split
  • Reason: Completely different icon

--Thyj (talk) 07:33, 3 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 03:17, 4 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:17, 4 August 2024 (UTC)

File:Park Street MBTA Station (53828706785).jpg → File:Westbound headhouse at Park Street station, August 2008.jpg

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  • Request: Merge
  • Reason: Higher quality version from original file

--Ethanmlong (talk) 16:43, 3 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 03:20, 4 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:20, 4 August 2024 (UTC)

Category:The Holy Family with Saint John the Baptist and Saint Margaret (1932.227) → Category:The Holy Family with Saint John the Baptist and Saint Margaret by Filippino Lippi

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  • Request: History merge
  • Reason: Repair cut-and-paste move

--Eureka Lott 14:45, 4 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 18:04, 4 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 18:04, 4 August 2024 (UTC)

File:The Sheik (1921).webm → File:The Sheik (1921) by George Melford.webm

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  • Request: [Merge]
  • Reason: This is the same movie. Merge as "The Sheik (1921).webm"

--37.47.180.31 20:38, 7 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 23:05, 7 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 23:05, 7 August 2024 (UTC)

File:TheLittleShopOfHorrors1960.webmhd.webm → FILE:The Little Shop of Horrors (1960) by Roger Corman.webm

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  • Request: [Merge]
  • Reason: The same movie

--37.47.180.31 20:42, 7 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 23:08, 7 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 23:08, 7 August 2024 (UTC)

File:Dr. Jack (1922).webm → File:Dr. Jack (1922) by Fred Newmeyer.webm

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  • Request: [Merge]
  • Reason: The same movie

--37.47.180.31 20:46, 7 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 23:13, 7 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 23:13, 7 August 2024 (UTC)

File:L'Atlantide (1921) par Jacques Feyder.webm → File:L'Atlantide (1921).webm

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  • Request: Merge
  • Reason: Duplicate. Merge under name "'L'Atlantide (1921).webm"

--OGPawlis (talk) 23:10, 7 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 23:19, 7 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 23:19, 7 August 2024 (UTC)

File:Paths to Paradise (1925) by Clarence G. Badger.webm → File:Paths to Paradise (1925).webm

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  • Request: Merge
  • Reason: Duplicate. Merge under name "Paths to Paradise (1925).webm"

OGPawlis (talk) 23:13, 7 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 04:01, 8 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:01, 8 August 2024 (UTC)

File:'49-'17 (1917) by Ruth Ann Baldwin.webm → File:Film '49–'17 (1917).webm

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  • Request: Merge
  • Reason: Duplicate. Merge under name "'49–'17 (1917).webm"

--OGPawlis (talk) 23:16, 7 August 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 04:08, 8 August 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:08, 8 August 2024 (UTC)

File:The Little Shop of Horrors (1960) by Roger Corman.webm → File:The Little Shop Of Horrors.webm

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  • Request: Merge
  • Reason: Same movie.

--OGPawlis (talk) 08:56, 8 August 2024 (UTC)[reply]

File:Logo Danamon 2024.svg → File:Danamon (2024, with MUFG byline).svg

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  • Request: [Merge]
  • Reason: Both files are essentially same image, except there's a spacing between the MUFG byline. So, i will suggest both files to merged at retained the letter file name (File:Danamon (2024, with MUFG byline).svg) as a file name for both combined files.

--103.111.100.82 12:09, 8 August 2024 (UTC)[reply]

See also

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